1. Matter In Motion Review

2. Know the Terms Speed Mass Velocity Friction Weight Force Motion
Acceleration
Static friction
Kinetic friction
Reference point
A push or pull
Speed in a certain direction
Moving friction
Something that appears to stay in place
How much matter is in an object
Distance traveled in a certain amount of time
Friction between objects that are not moving
A change is position over time
Measure of gravitational force on an object
The rate at which velocity changes
Opposes motion between surfaces that are touching

3. All objects in the universe are in constant motion

4. Net Forces / Balanced or Unbalanced
2 N N

5. Net force – Balanced or unbalanced?

6. Net force – Balanced or unbalanced?

7. Net force – Balanced or unbalanced?

8. Know your equations for:
Speed Velocity Average Acceleration

9. Know your units for:
Speed Velocity Acceleration Weight Mass

10. Use your equations to answer questions – Label units correctly!
Calculate the acceleration of a car that goes from 20 m/s to 50 m/s in 5 sec.

11. Use your equations to answer questions – Label units correctly!
In 5 seconds, a hot air balloon travels 20 meters. What is the speed?

12. Use your equations to answer questions – Label units correctly!
A car is heading South. It goes 5000m in 500s. What is its velocity?

13. Use your equations to answer questions – Label units correctly!
The distance from point A to point B is 300 m. If a bird was flying at a speed of 10m/s, how long would it take the bird to travel from point A to point B?

14. Use your equations to answer questions – Label units correctly!
What is the average speed of the red walker?

15. Use your equations to answer questions – Label units correctly!
A boat travels 80m/s up-river. The current of the river is 30 m/s down-river.  What is the boat’s resultant velocity?

16. Use your equations to answer questions – Label units correctly!
Ann is at the airport and is in a rush. She normally travels north at 2 m/s. If she gets on a “moving sidewalk “ that travels at 2 m/s north and walks on it, what will be her resultant velocity?

17. Answer Questions from Graphs

18. Choose the correct word from the list below to describe the motion taking place in each section.
acceleration
steady speed
stationary
1.OA AB BC CD DE EF

19. At what time during the journey did the bus reach its greatest speed?

20. How long was the bus stopped for during its journey?

21. During which section of the journey did the bus have the greatest acceleration?

22. Calculate the acceleration of the bus during section DE.

23. Which section could be described as a deceleration?

24. Harmful Friction:

25. Helpful friction

26. Reduce Friction Increase Friction

27. Sliding Friction Rolling Friction

28. Who discovered Gravity?

29. Amount of Friction Depends on roughness of surface and force pressing them together

30. The rougher the surface, the greater the friction

31. The greater the force, the greater the friction

32. Mass vs. Weight

33. Distance between objects
The Law of Universal Gravitation – all objects in the universe attract each other through gravitational force
Masses of objects
Distance between objects